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Alchen [17]
2 years ago
10

What pressure will be exerted by 1.22 mol of CO2 ata temperature of 298 K and a volume of 500 mL?

Chemistry
1 answer:
kenny6666 [7]2 years ago
3 0

Explanation:

mluu<uyyyttfxeexze44dzz5dx5d5xfx6

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Use the molar solubility 3.27×10−11m in pure water to calculate ksp for nis.
Ne4ueva [31]

Answer:

Ksp = 1.07x10⁻²¹

Explanation:

Molar solubility is defined as moles of solute can be dissolved in 1L.

Ksp for NiS is defined as:

NiS(s) ⇄ Ni²⁺(aq) + S²⁻(aq)

Ksp = [Ni²⁺] [S²⁻]

As molar solubility is 3.27x10⁻¹¹M, concentration of [Ni²⁺] and [S²⁻] is 3.27x10⁻¹¹M for both.

Replacing:

Ksp = [3.27x10⁻¹¹M] [3.27x10⁻¹¹M]

<em>Ksp = 1.07x10⁻²¹</em>

<em></em>

4 0
2 years ago
A solution in a dish contains 4.0 grams of salt dissolved in 100 grams of water. If 50 grams of the water evaporates, this is ev
MaRussiya [10]
D. A mixture

If the water is evaporating while the salt remains, it means the two are not chemically bonded and therefore are not a compound.
6 0
3 years ago
Why is it difficult to pull nitrogen from the atmosphere into the nitrogen cycle of the biosphere?
Jlenok [28]

Answer:

Because only a few bacterias can "fix" the atmosphere nitrogen.

Explanation:

The nitrogen at the atmosphere is in the form of N₂ and represents 78% of the atmosphere composition. The element is part of the constitution of nucleic acids and proteins, so the living beings needed them.

However, the animals and the plants can't catch the N₂. Some bacterias that live in mutualism with plants have this ability, and they "fix" the atmosphere nitrogen, transforming the N₂ in the ions nitrite (NO₃⁻) or ammonia (NH₃), which can be caught by the plants.

Them, when the primary consumers eat the plants they catch the nitrogen, which will be passed through the food chain.

So, it's difficult to pull nitrogen from the atmosphere into the nitrogen cycle of the biosphere because only a few bacterias can do it.

5 0
3 years ago
Why is petroleum called liquid gold?
lana66690 [7]

Answer:

It is called liquid gold because of its high price and value and its economic need by all the countries worldwide.

Explanation:

Petroleum is present in abundant quantity in the some regions . So it is considered as Liquid gold, which they value a lot.

3 0
3 years ago
In which set of elements would all members be expected to have very similar chemical properties?
zepelin [54]

Answer:

each group of the periodic table.

example group 7 - fluorine, chlorine, bromine, iodine, astatine, tennessine

6 0
2 years ago
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